Pump working barrel.



J. F. KILBURN.

PUMP WGBKING BARREL.

APPLICATION FILED Plan2?. 191s.

/NvENToH JOHN FRANKLIN KlLBURN ATTHNEYS Patented Nov. 11, 19l3.

lllllil AWEMI? 1 Unirse fisuras PATENT OFFICE.

JOHN FRANKLIN KILBURN, OF EL PASO, TEXAS, ASSIQNOR UF ONE-HALF T0 GEORGE E. WALLACE, OF EL PASO, TEXAS.

' 'PUMP WORKING BARREL.

Speccation of Letters Patent.

Patented Nov. 11, 1913.

To all whom it ma'y concern Be it known that I, JOHN FRANKLIN K11.- BURN, a citizen of the United States, and a resident of El Paso, in the county of El Paso and State of Texas, have invented a new and Improved Pump Working Barrel, of which the following is a full, clear, and exact description. Y

This invention relates to pumping apparatus and has particular reference t0 the specific construction of working barrels for any kind of pulnps in which there are movable or reciprocating pistons.

Among the objects of this invent-ion is to construct a cylinder or working barrel in such a manner and of such material as to increase its reliability and durability.

More particularly stated, the object of the present invention is to construct a pump cylinder of glass whereby the friction of the piston is reduced to a minimum and to so mount the cylinder with respect to the other portions of the pump as to make it thoroughly reliable in all practical operations.

The foregoing and other objects of this invention will hereinafter be more fully de scribed and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference in dicate corresponding parts in all the views,

and in which- Figure l is a vertical sectional View illustrating a preferred embodiment of the invention; F ig. 2 is a transverse section on the line 2 2 of Fig. l; and Fig. 3 is a fragmentary vertical section of a modified forni.

Except as otherwise stated, the several parts of the invention may be made of any suitable materials and the relative sizes and proportions thereof, as well as the general design of the device, may be varied to a considerable extent without departing from the spirit of the invention hereinafter claimed. f

Referring more particularly to the drawings, I show at 10 a pump cylinder constructed preferably of glass and formed with a central bore 11 for the accommodation of a plunger 12. Said plunger may be made of any suitable design having a plurality of fiexible packing washers 13 and also being provided with a sucker valve 14.

A sucker rod 15 of any suitable construction i is extended downwardly through the pump casing 16 as usual and is connected to the plunger. Y

I A pair of heads 17 and 18 are connected to the upper and lower ends of the cylinder respectively, each of said heads being provided with outwardly extending lugs 19 and each also having a centrally bored hub 20 abutting against and alining with the adjacent end of the cylinder.

A shell 21 preferably of metal and made fin several parts, is applied to the outside of the cylinder 10, and the shell parts extend beyond the ends of the cylinder into embracing cooperation with said hubs 20 of said heads, as shown especially in Fig. 1. I also preferably' employ a filler or plastic packing 22 between the inner surface of the shell and the outer surfaces of the cylinder and hubs anda similar packing 22 between the ends of the cylinder and the hubs.

Any suitable means may be employed to secure the parts of the shell in place and thereby secure the cylinder in place and protect it from outside damaging influences. For this purpose I may employ a plurality of sets of rings 23 and 24. The rings 23 are preferably split lengthwise of the 'cylinder and the material thereof in cross section is tapered, as indicated in the drawings, and the ring as a whole is provided with an external screw thread. The ring 2i is a solid ring made either in one piece or in several pieces clamped together, and being provided with an internal thread and larger than the ring 23 is adapted to be screwed or turned over said ring 23, and because of the taper of the coperating parts, the screwing of the outer ring 24 upon the inner ring 23 will produce a substantial binding or clamping effect upon the portions of the shell 21. Each of the rings 23 is preferably provided at its ends with smooth or blank portions 25 and 26, the former being for the purpose of facilitating the assembling of the pair of rings and the latter providing for the appli* cation of a wrench or other holding tool.

In one forni of the invention the heads 17 and 18 are clamped in place against the ends of the cylinder by means of a series of tic rods 27 'having nuts on one or bot-h ends i internally threaded flange 29 of the adjacent head 17:A It will be understood, of course, that thehead at the bottom of the cylinder will be made ordinarily in the same manner, and by reason of the flanged connection between the heads and the cylinder shell, the tie rods need not be used. 'lhe head 17 is provided preferably with a neck for direct connection of the pump casing similar to the manner of connecting the pump casing to the head 17 previously described.

Having thus described my invention, I claim as new. and desire to secure by Letters Patent 1. In a working barrel for pumps,y the combination of a cylinder, a pair of heads having hubs bearing against the respective ends of the cylinder, a shell longer than the cylinder and surrounding the cylinder and said hubs, plastic packing between the shell and hubs and the cylinder, means to grip shell detachably in position, said securing y means comprising a pair of rings, one of said rings being split and provided with an external thread and the other ring being rigid and provided with an internal thread for coperation with the external thread aforesaid, substantially asset forth.

3. In a Working barrel for pumps, the combination of a cylinder, a shell surrounding the cylinder, and means to secure the shell detachably in position, said securing means comprising a pair of rings, one of said rings being tapered and having smooth ends and also having an external thread between such smooth ends, and the other ring being rovided with an internal thread cooperating with said external thread of the other ring, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RALF" BORDER, P. E. GARDNER. 

